Thread: Shaft RPM?
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Old 06-25-2017, 09:45 PM   #4
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City: Vancouver, WA
Country: USA
Vessel Name: Matilda
Vessel Model: Ponderosa (CHB) 35' Sundeck
Join Date: Sep 2016
Posts: 112
Shaft RPM?

I have a single Lehman 120 with a Borg Warner Velvet Drive transmission. Further research shows my model has a 2.1:1 ratio, so gauge was pretty close. I hadn't realized the prop was rotating so much slower than the engine.
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